- The definition of an alder is a small fast growing tree or shrub that grows in cool soil and cold climates.
An example of an alder is a plant in the birch family.
An alder tree in the summer sun.
Origin of alderMiddle English alder, aller ; from Old English alor, aler ; from Indo-European base an unverified form el-: see elm
- Any of various deciduous shrubs or trees of the genus Alnus, native chiefly to northern temperate regions and having alternate simple toothed leaves and woody, conelike catkins.
- The wood of these plants, used in carvings and for making furniture and cabinets.
Origin of alderMiddle English, from Old English alor.
- Any of several trees or shrubs of the genus Alnus, belonging to the birch family.
- Andean alder
- black alder
- Caucasian alder
- common alder
- Formosan alder
- green alder
- grey alder
- hazel alder
- Himalayan alder
- Italian alder
- Japanese alder
- Mexican alder
- Nepalese alder
- oriental alder
- red alder
- seaside alder
- white alder
Middle English alder, aller, from Old English alor, from Proto-Germanic *aluz, *alusō (compare Swedish al, East Frisian ällerboom), variant of *alizō, *alisō (compare Dutch els, German Erle), from Proto-Indo-European *h₂élisos (compare Hittite alanza(n), Latin alnus, Latvian àlksnis, Polish olcha, Albanian halë 'black pine', Ancient Macedonian (Hesychius) άλιχα (álicha, “white poplar”)
- A topographic surname for someone who lived by alder trees.